TW201334321A - Electrical connector - Google Patents

Abstract

A receptacle connector for mounting to a mother board and for use with a plug, includes an insulative housing defining a base with a mating tongue forwardly extending therefrom. A plurality of contacts are disposed in the housing with contacting sections exposed on the mating tongue. A metallic shell is assembled to the housing and defines a mating cavity into which the mating tongue extends for receiving the plug therein. A plurality of spring tangs are formed on the shell and extend into the mating cavity for retainable abutment against the inserted plug. A dome switch is located outside of the shell and intimately confronts the corresponding spring tang so as to be activated when the corresponding spring tang is outwardly deflected by the inserted plug. An addition detect pin is electrically connected to the dome switch when the dome switch is activated to verify whether the plug is inserted in the mating cavity or to identify whether a high power is required.

Description

Electrical connector

The present invention relates to an electrical connector, and more particularly to an electrical connector having a detecting component.

The USB connector is widely used as a connection interface on the market. Although the USB connector can continuously transmit power, in some cases a large power source is required. Therefore, the socket connector mounted on the main board is expected to be provided with a detection terminal so as to be able to recognize whether the docked plug requires a relatively large power source. On the other hand, the detection terminal attached to the common USB socket connector basically extends into the receiving cavity and is triggered by the inserted plug. In some cases, the corresponding metal housing of the receiving cavity is formed for the detection terminal. It will also be required to be able to adjust the changes. These adjustments may cause permanent damage to the mechanical and electrical properties of the metal casing and cause a short circuit.

Therefore, there is a need for a USB receptacle connector that has a detection terminal and does not affect the original mechanical and electrical performance.

It is an object of the invention to provide an electrical connector having a sensing element.

For the purpose of this creation, the present invention adopts the following technical solution: an electrical connector for docking with a plug, the electrical connector comprising: an insulating body, which is covered by a metal casing to jointly form a receiving cavity; a terminal fixed to the body, the terminal being provided with a contact portion exposed in the receiving cavity; at least one dome-shaped switch movable in a direction perpendicular to the front-rear direction and capable of being inserted into the receiving cavity And the at least one detecting terminal is electrically connected to the at least one dome switch; wherein the detecting terminal and the tail of the terminal are both disposed at a rear end of the insulating body.

For the purpose of this creation, the present invention adopts another technical solution: a stacked connector, comprising: an insulating body, which is covered by a metal casing to jointly form an upper receiving cavity extending from an upper tongue plate and by the following The tongue plate extends into the lower receiving cavity, and the upper printed circuit board is assembled between the upper and lower receiving cavities, and is provided with a front dome switch for insertion detection and a rear switch for power transmission detection; The lower printed circuit board is assembled under the insulative housing and is provided with a front dome switch for insertion detection and a rear switch for power transmission detection.

The first figure is a perspective assembled view of a single layer electrical connector in a first embodiment of the present invention.

The second figure is an upside down perspective view of the electrical connector shown in the first figure, in which the printed circuit board and corresponding flexible members are not shown.

The third figure is a perspective view of the electrical connector shown in the first figure upside down.

The fourth figure is a perspective view of the above printed circuit board on which a dome-shaped switch is provided.

The fifth figure is an enlarged view showing a printed circuit board with a flexible member.

The sixth figure is a perspective view of the flexible member.

7A and 7B are perspective views of two different angles of the electrical connector in the second embodiment of the present invention, wherein the printed circuit board and the flexible member are removed;

The eighth figure is the printed circuit board and flexible member of the electrical connector shown in the seventh figure.

The ninth diagram is a variation of the electrical connector shown in the seventh diagram.

Figure 11 is a perspective view of a stacked electrical connector in a third embodiment of the present invention.

The eleventh figure is a bottom view of the stacked electrical connector shown in the tenth figure.

Figure 12 is a schematic diagram of the insertion of the detection terminal and the power transmission detection terminal.

Figure 13 is a partial perspective view of the stacked electrical connector shown in the tenth figure, showing the assembly of the upper printed circuit board.

Figure 14 is a perspective view of another portion of the stacked electrical connector shown in the tenth figure, showing the assembly of the connector module.

The fifteenth diagram is a perspective view of still another portion of the stacked electrical connector shown in the tenth figure, showing the position of the connector module.

Figure 16 is a partial perspective view of the stacked electrical connector shown in the tenth figure, showing the assembly of the underlying printed circuit board.

Figure 17 is a partial perspective view of the stacked electrical connector shown in the tenth diagram showing the assembled position of the lower printed circuit board.

Figure 18 is a partial perspective view of the stacked electrical connector shown in the tenth figure, showing the assembled position of the inner casing.

Figure 19 is a partial perspective view of the stacked electrical connector shown in the tenth figure, showing the assembly of the inner casing.

Figure 20 is an overall perspective view of the stacked electrical connector shown in the tenth diagram.

Referring to the first to sixth figures, the electrical connector 1 of the first embodiment of the present invention is a USB 3.0 socket connector for docking with a plug (not shown) and mounted on a motherboard (not shown). Figure)). The electrical connector 1 includes an insulative housing 12, a metal housing 16 covering the insulative housing 12, and a plurality of electrically conductive terminals secured within the insulative housing 12. The insulative housing 12 is provided with a tongue plate 14 that extends forward and is integrally formed with the insulative housing 12. The housing 16 is assembled to the insulative housing 12 and covers the insulative housing 12 to form a receiving cavity 18 into which the tongue 14 extends. The plurality of elastic pieces 20 integrally extend from the housing 16 into the receiving cavity 18. The conductive terminal includes four movable terminals 22 and five stationary terminals 24, and each of the conductive terminals is provided with a contact portion. All of the contacts are exposed on the same side of the tongue plate 14 and together form the USB 3.0 interface standard, that is, the contact portions of the stationary terminals 24 are arranged in a front row, and the contact portions of the movable terminals 22 are arranged in a rear row.

A printed circuit board 26 is entirely located below the insulative housing 12 and the housing 16. The printed circuit 26 is provided with a front dome switch 30 on its right front side and a rear dome switch 32 on its left rear side. The front dome switch 30 is configured to implement insertion detection, that is, to identify whether a plug is inserted, which is vertically aligned with a portion of the corresponding elastic piece 20 near the front of the receiving cavity 18; the rear dome switch 32 is used for power supply The transmission detection, that is, whether the inserted plug is a power transmission plug capable of transmitting a large power source, is vertically aligned with a portion of the other elastic piece (not shown) near the rear of the housing cavity 18.

A flexible member 34 covers the front and rear dome switches 30, 32 and directly abuts the respective springs 20. The flexible member 34 is provided with a button that protrudes upward from the top as viewed from the top, and the bottom of the button is recessed upward as viewed from the bottom. The button is located directly above the front dome switch 30 to trigger the front dome switch 30 when the button is pressed down. The rear edge of the printed circuit board 26 is provided with three conductive holes electrically connected to the dome-shaped switches 30, 32 through conductive tracks. The plurality of detecting terminals 36 are fixed on the insulative housing 12 and extend downwardly from the printed circuit board 26 for mounting to the main board. The detecting terminals 36 pass through the conductive holes of the printed circuit board 26 to correspond to the corresponding domes. The switches 30, 32 are electrically connected. As an alternative, the additional detection terminal 36 can also be directly attached to the printed circuit board 26.

Referring to the second figure, the insulative housing 12 is provided with a support plate on the outer side of the bottom wall of the metal casing 16, which is shorter than the bottom wall of the metal casing 16, so that the front portion of the bottom wall of the metal casing 16 is exposed downward. . The printed circuit board 26 and the flexible member 34 thereon are assembled at the bottom of the metal casing 16 and the insulative housing 12, the flexible member 34 is located under the front portion of the metal casing 16, and the printed circuit board 26 is abutted against the insulative body. 12 support plates. The printed circuit board 26 is provided with a pair of notches on both sides thereof, and the support plate of the insulative housing 12 is correspondingly provided with a pair of protrusions to cooperate with the notch to position the printed circuit board 26. Finally, the button of the flexible member 34 is located directly below the spring 20, and the front dome switch 30 of the printed circuit board 26 is located directly below the button for triggering by the button.

When a normal plug or power transmission plug or other mating plug is inserted into the receiving cavity 18, the elastic piece 20 is pushed outward by the plug and the front dome switch 30 and the corresponding detecting terminal 36 are triggered by the button of the flexible member 34, thereby discriminating whether There is a plug inserted. When the inserted plug is a power transmission plug, the size of the docking portion of the power transmission plug extending in the front-rear direction is longer than that of the ordinary plug, and the rear dome switch 32 and the corresponding detecting terminal 36 are triggered to distinguish The inserted plug is a power transmission plug that can transmit a large power source; the normal plug does not trigger to the rear dome switch 32.

Please note that in the present embodiment, the insulative housing 12 is in a relatively rough form. In fact, the support plate of the insulative housing 12 should be removed from the partial structure so as to communicate with the corresponding elastic piece 20 and rear dome switch on the rear side of the housing 16. 32.

It will be appreciated that as a simple alternative, the dome shaped switches 30, 32 of the printed circuit board 26 can be directly triggered by the docked plugs without passing through the springs 20. Further, the flexible member 34 can be attached to the printed circuit board 26 in a sealed manner around the dome shaped switches 30, 32 to prevent contamination of the dome shaped switches 30, 32. One of the features of the present invention is to provide a transmission structure, such as dome-shaped switches 30, 32 and its printed circuit board 26 between the detection terminal 36 and the inserted plug, rather than the detection terminal 36 being in direct contact with the plug.

7 to 8 show a second embodiment of the present invention, which is basically the same as the first embodiment, except that the rear dome switch 32 of the printed circuit board 26' is replaced with a cantilever terminal. 32'. The cantilever terminal 32' is directly mounted on the printed circuit board 26', and the housing 16' is provided with a rear elastic piece 20'. The insulating body 12' is correspondingly provided with an opening 15' so that the rear elastic piece 20' can be the cantilever terminal. 32' direct drive. In addition, the flexible member 34' is provided with two buttons 35'. The front dome switch (not shown) is located directly under one of the buttons 35', and when the plug is docked, both buttons 35' are pressed down to make the electricity The force balance of the connector. The flexible member 34' is further provided with a groove 37' on the front side of the button 35' for receiving the front end of the depressed elastic piece to avoid severe scratching. The cantilever terminal 32' is electrically connected to the housing 16' via a metal housing of the plug to form a detection circuit. If the docked plug is a Thin Card with an insulated casing, the detection loop will not be turned on. The ninth drawing shows a simple variant of the second embodiment in which the rear elastic piece 20' is removed, and the cantilever terminal 32' extends directly into the receiving cavity 18' and is directly driven by the inserted plug.

10 to 20 show a third embodiment of the present invention. A stack connector 50 includes an insulative housing 52 having a base portion 54 and an upper tongue plate 56 extending forwardly from the base portion 54 and The lower tongue plate 58, the upper and lower tongue plates 56, 58 extend into the upper receiving cavity 501 and the lower receiving cavity 502, respectively. A partition 60 is further disposed between the two receiving chambers 501, 502 in the vertical direction.

The partition plate 60 is provided with a chamber 601, and the upper printed circuit board 62 is retrofitted into the chamber 601 for fixing to the partition 62, and a front dome switch (not shown) for insertion detection is disposed thereon. And a rear switch for power transmission detection, which is a cantilever terminal 66 in this embodiment. The front dome switch is covered with a flexible member 65 having a button 64. The connector module 68 is disposed on the upper receiving cavity 501 and is mounted on a side wall 70 of the insulative housing 52. The connector module 68 is a plastic piece embedded with the detecting terminal 72. The top of the detecting terminal 72 is soldered to the upper printed circuit board 62, and the tail portion is extended downward to be exposed for the upper layer printed circuit. The front and rear switches of the board 62 are electrically connected to a main board (not shown).

The lower printed circuit board 74 is assembled upwardly on the bottom wall 76 of the insulative housing 52 in a manner similar to that disclosed in the first and second embodiments. The lower printed circuit board 74 is also provided with a front dome switch (not shown) for insertion detection and a rear switch for power transmission detection, a cantilever terminal 80. The front dome switch is covered with another flexible member 75 having a button 78. Similar to the connector module 68 for the upper receiving cavity 501, the other connector module 82 is assembled on the other side wall 84 of the insulative housing 52. The corresponding detecting terminal 86 and the lower layer printed circuit are connected to the connector module 82. The board 74 is electrically connected. The tail portion of the detecting terminal 72 for connecting the upper printed circuit board 62 and the tail of the nine terminals of the lower receiving cavity 502 can be used for mechanical fixing through the lower printed circuit board 74. The structures of the upper and lower printed circuit boards 62, 74 and the additional flexible members 65, 75 are the same as those of the printed circuit board 26' and the flexible member 34' in the second embodiment, and will not be described again.

The stack connector 50 further includes a housing that integrally encloses the insulative housing 52, the housing including an inner housing 88, a main housing 92, and a rear housing 94. The inner casing 88 encloses the partition 60 and is provided with a resilient piece 90 extending into the upper receiving cavity 501 and pressing down against the corresponding button 64 to enable triggering under the button 64 when docked with the inserted plug The front dome switch. The main casing 92 covers the outer contour of the insulative housing 52 and is provided with a plurality of elastic pieces 96 extending into the receiving chambers 501, 502. The elastic piece 96 on the bottom wall is used for pressing the button 78 to trigger the front of the button 78. A dome-shaped switch, the rear housing 94 is assembled from the rear to the rear of the insulative housing 52.

The above is a further detailed description of the present invention in connection with the specific preferred embodiments. The specific embodiments of the present invention are not limited to the description. A person skilled in the art to which the present invention pertains can make a simple deduction or replacement without departing from the spirit and scope of the invention.

1. . . Electrical connector

12, 12’. . . Insulating body

16, 90’. . . Metal housing

14. . . Tongue

twenty two. . . Movable terminal

twenty four. . . Static terminal

18, 18’. . . Containment chamber

20, 90. . . shrapnel

26. . . A printed circuit board

34, 34', 65, 75. . . Flexible part

30. . . Front dome switch

32. . . Rear dome switch

36, 72, 86. . . Detection terminal

32’. . . Cantilever terminal

20’. . . Rear shrapnel

50. . . Stack connector

52. . . Insulating body

54. . . Base

56. . . Upper tongue

58. . . Lower tongue

501. . . Upper containment chamber

502. . . Lower containment chamber

60. . . Partition

62. . . Upper printed circuit board

35’, 64, 78. . . Button

66, 80. . . Rear cantilever terminal

68, 82. . . Connector module

70, 84. . . Side wall

76. . . Bottom wall

74. . . Lower printed circuit board

88. . . Inner casing

92. . . Main housing

94. . . Rear housing

15’. . . Opening

601. . . Room

37’. . . groove

96. . . shrapnel

52. . . Insulating body

54. . . Base

56. . . Upper tongue

58. . . Lower tongue

60. . . Partition

601. . . Room

62. . . Upper printed circuit board

64. . . Button

66. . . Rear cantilever terminal

68. . . Connector module

65. . . Flexible part

Claims (10)

An electrical connector for interfacing with a plug, the electrical connector comprising:
The insulating body is covered by a metal shell to jointly form a receiving cavity;
a plurality of terminals fixed on the insulative housing, the terminals being provided with contact portions exposed in the receiving cavity;
At least one dome switch movable in a direction perpendicular to the front-rear direction and capable of being triggered by a plug inserted into the receiving cavity;
And at least one detecting terminal electrically connected to the at least one dome switch;
The detecting terminal and the tail of the terminal are all disposed on a rear side of the insulating body. The electrical connector of claim 1, wherein the at least one dome switch is disposed on a printed circuit board, and the printed circuit board is provided with a conductive hole electrically connected to the at least one dome switch The detecting terminal is fixed on the insulating body and passes through the conductive hole to be electrically connected to the conductive hole and the at least one dome switch. The electrical connector of claim 2, wherein the housing is provided with a resilient piece extending into the receiving cavity for the inserted plug to be pushed outwardly to trigger the at least one dome shaped switch. The electrical connector of claim 3, wherein the electrical connector is further provided with a flexible member covering the at least one dome switch, the flexible member being provided with a button corresponding to the at least one dome switch, The button is located directly below the shrapnel so that the button is depressed when the shrapnel is deflected outwardly to trigger the at least one dome switch. A stacking connector comprising:
The insulating body is covered by a metal casing to jointly form an upper receiving cavity and a lower receiving cavity, and the insulating body further includes an upper tongue plate extending into the upper receiving cavity, a lower tongue plate extending into the lower receiving cavity, and a bottom wall;
The upper printed circuit board is assembled between the upper and lower receiving cavities, and is provided with a front dome switch for insertion detection and a rear switch for power transmission detection;
And the lower printed circuit board is assembled under the bottom wall of the insulative housing, and is provided with a front dome switch for insertion detection and a rear switch for power transmission detection. The stack connector of claim 5, wherein the housing is provided with a resilient piece extending into the receiving cavity for the inserted plug to be pushed outwardly to trigger the switch. The stacking connector of claim 5, wherein the stacking connector further comprises a connecting member assembled on the insulating body, the connecting member is a plastic piece embedded with a detecting terminal, the detecting The terminal is soldered to the upper printed circuit board and electrically connected to the switch and extends downward through the lower printed circuit board to extend the stack connector. The stacking connector of claim 5, wherein the rear switch is a cantilever terminal, and the insulating body is provided with an opening directly above the cantilever terminal, so that the cantilever terminal can be in contact with the plug inserted into the receiving cavity . The stacked electrical connector of claim 6, wherein the stacked connector is further provided with a flexible member covering the front dome switch, the flexible member is provided with two buttons, and only one of the lower portions is provided In the front dome switch, when the plug is inserted, both buttons are pressed down by the corresponding spring to balance the force of the stacked electrical connector. The stacked electrical connector of claim 5, wherein the insulative housing is provided with a partition, the upper printed circuit board is mainly mounted on the partition, and the housing includes an inner cover a housing that forms the spring piece extending into the upper receiving cavity for triggering the front dome switch of the upper printed circuit board.